如何使 UIImageView 成为按钮？

Posted 2023-03-22

【中文标题】如何使 UIImageView 成为按钮？

【英文标题】：How to make a UIImageView a button?

【发布时间】：2014-06-19 06:26:49

【问题描述】：

我有一个这样的 UIImageView：

UIImage *image = [UIImage imageNamed:@"test.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

imageView.frame = CGRectMake(0, 0, 30, 30);
imageView.layer.cornerRadius = 5.0;
imageView.layer.masksToBounds = YES;
imageView.layer.borderColor = [UIColor lightGrayColor].CGColor;
imageView.layer.borderWidth = 0.1;

[self.view addSubview:imageView];

几个问题/问题：

如何将此按钮设为可点击按钮？

我想链接到设置（在我的应用程序中），但我是否必须像许多应用程序使用的设置图标一样创建该图像轮，或者它是 ios 7 中的标准图标？ 这就是我说的图标：

为什么我的边框不显示？

【问题讨论】：

你可以在你的 imageview 上放置一个自定义类型的 UIButton

为什么不尝试添加一个 UIButton，然后在该按钮上添加背景图像？

【参考方案1】：

1）如果你想要一个按钮，你应该使用UIButton和[UIButton setImage: forState:]

2) 或者，您可以将UITapGestureRecognizer 添加到您当前的UIImageView

【讨论】：

是的，我将切换到 UIButton

【参考方案2】：

这里有两个选择你必须使用你的方法

.h 文件

 #import <QuartzCore/QuartzCore.h>  //for radius and corner



1. UIButton


   UIButton *btn1 = [UIButton buttonWithType:UIButtonTypeCustom];
 [btn1 setTitle:@"Cool title" forState:UIControlStateNormal];
[btn1 setFrame:CGRectMake(7, 7, 150, 160)];
[btn1 setImage:[UIImage imageNamed:@"test.png"] forState:UIControlStateNormal];
[btn1 addTarget:self action:@selector(selectFav) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn1];


-(void) selectFav

  //what ever you do like


 

2. UITap Gesture for UIImage View


 UIImage *image = [UIImage imageNamed:@"test.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

  imageView.frame = CGRectMake(0, 0, 30, 30);
  imageView.layer.cornerRadius = 5.0;
  imageView.layer.masksToBounds = YES;
 imageView.layer.borderColor = [UIColor lightGrayColor].CGColor;
imageView.layer.borderWidth = 0.1;


   UITapGestureRecognizer *tapGesture1 = [[UITapGestureRecognizer alloc] initWithTarget:self  action:@selector(tapGesture:)];

 tapGesture1.numberOfTapsRequired = 1;

[tapGesture1 setDelegate:self];

 [imgView addGestureRecognizer:tapGesture1];

[self.view addSubview:imageView];

- (void) tapGesture: (id)sender

 //handle Tap...

【讨论】：

在我的选择中主要用于你的图像的取消按钮，它很好用

【参考方案3】：

试试：

UIImage *image = [UIImage imageNamed:@"test.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

imageView.frame = CGRectMake(0, 0, 30, 30);
imageView.layer.cornerRadius = 5.0;
imageView.layer.masksToBounds = YES;
imageView.layer.borderColor = [UIColor lightGrayColor].CGColor;
imageView.layer.borderWidth = 0.1;

/* Here's the button Start */
UIButton *theButton = [[UIButton alloc]initWithFrame:CGRectMake(imageView.frame.origin.x, imageView.frame.origin.y, imageView.frame.size.width, imageView.frame.size.height)];
theButton.backgroundColor = [UIColor clearColor];
theButton.showsTouchWhenHighlighted = YES;
[theButton addTarget:self action:@selector(yourAction) forControlEvents:UIControlEventTouchUpInside];

[imageView addSubview:theButton];
/* Here's the button End */

[self.view addSubview:imageView];

你的边界：

0.1 means is 1/10th of a point - try 1.0 for a nice fine line

同时设置：

imageView.clipsToBounds = YES;

【参考方案4】：

1：如果你有图像视图并且想要点击

UIImage *image = [UIImage imageNamed:@"test.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

2：像这样向图像视图添加手势，但不要忘记 setUserInteractionEnabled:YES

UITapGestureRecognizer *TapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(markerMove:)];

    [TapGestureRecognizer setNumberOfTapsRequired:1];
    [TapGestureRecognizer setNumberOfTouchesRequired:1];
    [imageView setUserInteractionEnabled:YES];
    [imageView addGestureRecognizer: TapGestureRecognizer];